Asphalt Shingle Roof Replacement cost: Decatur vs Joliet (2026)
Budget-wise, asphalt shingle roof replacement in Decatur ($8,800) runs 23% less than in Joliet ($10,850), a roughly $2,050 spread.
Decatur IL
Lower costTypically around $8,800
Joliet IL
Typically around $10,850
Decatur vs Joliet: full breakdown
| Factor | Decatur | Joliet |
|---|---|---|
| Typical 2026 cost | $8,800 | $10,850 |
| Estimated range | $5,750–$11,850 | $7,100–$14,600 |
| Labor index (vs US) | ×0.92 | ×1.14 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.05 | ×1.05 |
| Local permit | $250 | $300 |
| Labor share | $5,300 | $6,500 |
| Materials/equipment | $3,500 | $4,350 |
All figures are 2026 localized planning estimates for asphalt shingle roof replacement — get an actual quote before you commit.
How much should this gap actually matter?
That's a real $2,050 difference (23%) on asphalt shingle roof replacement — worth factoring in, though off-season timing and a tighter quote in Joliet can narrow it.
Asphalt shingle roof replacement by type: Decatur vs Joliet
Each asphalt shingle roof replacement option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Decatur | Joliet |
|---|---|---|
| 3-tab shingles | $5,750–$9,950 | $7,100–$12,200 |
| Architectural shingles | $7,050–$11,850 | $8,650–$14,600 |
All figures are 2026 localized planning estimates for asphalt shingle roof replacement — get an actual quote before you commit.
Asphalt shingle roof replacement by roof size: Decatur vs Joliet
Roofing is priced per 'square' (100 sq ft of roof). A roof is bigger than the home's footprint because of pitch and overhangs — a 2,000 sq ft home often has a 2,200–2,600 sq ft roof. Asphalt runs about $3–$5 per sq ft installed.
| Size | Decatur | Joliet |
|---|---|---|
| 1,000 sq ft (10 squares) | $3,950–$7,050 | $4,850–$8,650 |
| 1,500 sq ft (15 squares) | $5,100–$9,450 | $6,250–$11,600 |
| 2,000 sq ft (20 squares) | $5,750–$11,850 | $7,100–$14,600 |
| 2,500 sq ft (25 squares) | $7,500–$13,800 | $9,250–$17,000 |
| 3,000 sq ft (30 squares) | $8,950–$16,700 | $11,050–$20,550 |
| 3,500+ sq ft (35 squares) | $10,400–$19,600 | $12,800–$24,150 |
All figures are 2026 localized planning estimates for asphalt shingle roof replacement — get an actual quote before you commit.
What roofing pros earn in each metro
Labor is about 60% of a asphalt shingle roof replacement bill, so local wages drive most of the gap. These are real metro hourly wages for skilled installers (BLS OEWS), not estimates.
No BLS metro wage series for Decatur; we use Illinois regional price parity instead.
Chicago-Naperville-Elgin metro · about 23% above the US average installer wage.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for asphalt shingle roof replacement in either city
Shingles seal properly only in warm, dry conditions, which is exactly when everyone else wants a new roof too — especially right after a summer hailstorm. Lock in a late-fall or winter booking for a spring install and you skip that rush.
Where does a smart roofing budget go in 2026?
Two roofs of the same square footage can price hundreds apart because of something you can't see from the ground — the deck under the old shingles. Add the tear-off-versus-overlay call and the shingle grade, and you have the decisions that actually move the number.
The do-it-right case
Skipping the tear-off means burying whatever's failing underneath, and a second layer bakes the shingles from below until they curl early. Doing it properly means stripping to the deck, then paying for real underlayment, flashing and airflow — the work that sets how long the roof lasts, not just how it looks the first week.
The risk case
Nail down the per-sheet decking rate in writing before anyone climbs up. Soft or rotted plywood is the most common mid-job discovery, and without an agreed number the crew names the price after they've already found the damage — turning a cheap quote into an open tab.
The value case
For a typical home, the architectural shingle is the default that makes sense. It outlasts 3-tab by a wide margin at a modest premium, and it spares you the cost of metal or tile that most roofs never need to justify.
A roof's real cost shows up over its lifespan, not on install day. Tear-off, a documented repair rate and a mid-tier shingle grade are what keep that lifetime cost in check.
Decatur vs Joliet
Is asphalt shingle roof replacement cheaper in Decatur or Joliet?
Yes — Joliet costs more. Expect around $10,850 for asphalt shingle roof replacement there against $8,800 in Decatur, about $2,050 (23%) apart in 2026.
Why does asphalt shingle roof replacement cost more in Joliet than Decatur?
Labor rates explain most of it — 1.14 in Joliet vs 0.92 in Decatur. A cold climate versus cold, along with differing permit costs, accounts for the rest.
How much is asphalt shingle roof replacement in Decatur, IL?
asphalt shingle roof replacement in Decatur runs $5,750–$11,850 as of 2026 — most jobs land near $8,800.
When is the cheapest time to buy asphalt shingle roof replacement — and does it differ by city?
No, the seasonal pattern is the same in Decatur and Joliet: book during Late spring to early fall (dry, 45–85°F) for about 5–10% in savings. Mid-winter and the post-storm rush is the priciest stretch in both cities, mostly due to emergency replacements.
Should I choose where to live based on asphalt shingle roof replacement cost?
Probably not. Yes, $2,050 is a real gap, but it's a one-time cost you can partly offset in Joliet with off-season timing and tighter bids. Long-term factors like energy prices and home condition matter more than this one number.
Compare asphalt shingle roof replacement in other cities
Updated June 2026 · By Serhat Özçelik